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Effect of Electrode Patterning on Melting Behavior and Electrode Degradation in Resistance Spot Welding of A6014-T4 Alloy
A6014-T4 합금 소재의 저항 점 용접 시 용융 거동 및 전극 열화에 미치는 전극 패터닝 효과
Hyun-Uk Jun, Jae-Hun Kim, Jae Won Kim, Eun-Kyung Lee, Yang-Do Kim, Changwook Ji
전현욱, 김재훈, 김재원, 이은경, 김양도, 지창욱
Korean J. Met. Mater. 2020;58(12):863-874.   Published online 2020 Dec 4
DOI: https://doi.org/10.3365/KJMM.2020.58.12.863

Abstract
In this study, the effects of electrode surface design on the resistance spot weldability and degradation of the electrode following resistance spot welding (RSW) of aluminum 6014-T4 alloy were investigated. A new patterning method that can be produced through repetitive pressurization was applied to the electrode, producing a lattice-like pattern..... More

                        
A Research on the Surface Oxidation During Gas Carburization of Cr-Mo-Si Steels for the Automotive Transmission Gears
자동차 변속기 기어용 Cr-Mo-Si강의 가스 침탄 중 표면 산화반응 연구
Joong-Kil Choe, Dong-Hwi Kim, Bong-Lae Jo, Seung-hyun Hong, Jun Young Park, Seong-Jun Park
최중길, 김동휘, 조봉래, 홍승현, 박준영, 박성준
Korean J. Met. Mater. 2020;58(2):125-130.   Published online 2020 Jan 8
DOI: https://doi.org/10.3365/KJMM.2020.58.2.125

Abstract
As global regulations of CO2 emissions and fuel consumption efficiency become more strict, the automotive powertrain system has become more compact with lower lubrication viscosity. With the current trends in powertrain system improvement, the operating conditions of powertrain components such as gears are becoming more severe. As a result, it..... More

                        
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